Comtech Systems, Inc. (CSI), a subsidiary of Comtech Telecommunications Corporation (Nasdaq: CMTL), is a leader in turnkey co ... mmunication systems for fixed, transportable, and mobile applications including VSAT, HF/VHF/UHF, Microwave, Fiber, Beyond Line of Sight, Troposcatter and IP Networks. With over 40 years of continuous development and innovation, our equipment is designed from the ground up providing the highest level of performance in the industry. Our systems are deployed globally for both commercial and military applications and are currently operating in the United States, Europe, Africa, the Middle East, Asia, and Latin America, in a variety of environments ranging from the extremes of the arctic and deserts, to maritime and tropical settings. read more